Can this be hard wired

Yes, but the power in on the back is still 12v. You’ll need a transformer or other solution in-wall to hard wire it. LED drivers can be used and are small and cheap. Just make sure it’s 3A or more.

Does this unit allow an external amplifier with existing in-wall wires to be used as the aux input inside the wall?

It's amplifier itself, has bluetooth, mic, USB, aux functions.

Can it be used for TV and in countries using 220 volt ? Thanks

This unit is a Bluetooth receiver with amplifier so it can be used with any device. The unit uses a 12volt dc power supply. As long you provide it the 12 volts dc you will be fine. The house voltage can be whatever your adapter takes to convert to 12 volts.

Where do i connect speakers ? what is max impedance for speakers?

There is a green terminal at the back of wall plate,could connect 4Ohm speakers.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Bluetooth Amplifier

Product ID: 151204868

Details

Audio Encoding
Stereo
Audio Output Mode
Stereo
Brand
Herdio
Color
white
Compatible Devices
Smartphone
Connectivity Technology
Bluetooth

📶30+ ft Bluetooth wireless range

🔊100W max output power

🔌USB port for media playback & charging

$84.14

Duties & taxes included

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Sold byAmazon British Virgin IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎶 Elevate your space with invisible power — sound that’s always on point.

DUAL SPEAKER SUPPORT - Connect up to two speakers for immersive home theater or sound system integration.
MULTI SOURCE AUDIO INPUTS - Supports USB flash playback, 3.5mm aux input, and microphone mode for versatile sound control.
SLEEK WALL MOUNTED DESIGN - Discreet installation blends into any home or office environment for a clutter-free setup.
POWERFUL 100 W AMPLIFICATION - Fill your space with rich, clear stereo sound from a compact in-wall unit.
SEAMLESS WIRELESS STREAMING - Bluetooth connectivity lets you stream effortlessly from any smart device within 30+ feet.

The Herdio In-Wall Audio Control Amplifier Receiver is a 2-channel, 100W max output wall plate featuring built-in Bluetooth for wireless streaming, USB port for media playback and device charging, and a 3.5mm aux input. Designed for easy installation, it supports up to two speakers and integrates seamlessly into home theater or office sound systems.

Specifications

ASIN	B07WK65VHM
Audio Encoding	Stereo
Audio Output Mode	Stereo
Audio Output Type	Speakers
Best Sellers Rank	#31,895 in Electronics ( See Top 100 in Electronics ) #158 in Audio & Video Distribution Wall Plates
Brand	Herdio
Color	white
Compatible Devices	Smartphone
Connectivity Technology	Bluetooth
Connector Type	3.5mm Jack
Control Method	Touch
Controller Type	iOS
Customer Reviews	4.3 4.3 out of 5 stars (516)
Format	WMA
Manufacturer	Herdio
Mfr Part Number	HMA-16BT
Model Number	HWA-16BT
Number of Channels	2
Number of Items	1
Other Special Features of the Product	Built-In Bluetooth
Output Wattage	100 watts
Software Update Supported to Date	unknown
Surround Sound Channel Configuration	2 Channel
Wattage	40 watts
Wireless Technology	Bluetooth

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